Sunny Jim Cave is a the only cave in La Jolla that is reachable by land. Named by L. Frank Baum of Wizard of Oz fame, Sunny Jim was a cartoon cereal box mascot in the 1920s. Entrance to the cave is through the gift shop, and all kids get a cute plastic sea creature. For a nominal fee, you can enter the man-made tunnel and descend down 145 steps to a cool, scenic view at the bottom. When you’re done, leave the gift shop, turn right, and walk the bluffs to the lookout point for some spectacular ocean views. Source: redtri.com